| Summary: | 碩士 === 國立高雄科技大學 === 電子工程系 === 107 === In this paper, we have developed a 25GBaud fourth-order pulse amplitude modulation multi-channel optical transmitter module and 25GBaud fourth-order pulse amplitude modulation multi-channel optical receiver module.
In optical transmitter module, we used four wavelengths 1310nm distributed feedback laser, and connected to the four channels driver IC by wire bond. In the improved version of the Heat dissipation, the 20Gbaud PAM4 optical eye diagram can be finally measured, and the current problems and future solutions are proposed.
In optical receiver module it use a single mode of four channels photodiode array for connected to the four channels transimpedance amplifier IC by wire bond, and add Clock and Data Recovery circuit.When using DFB laser as the optical source, the receiving PAM4 bit error rate can meet the KP4 specification. When using the external mode optical source, the PAM4 electric eye diagram can achieve a bit error rate of 10^-12 or less. Compared with the previous generation Rx, using CDR exhibits significant high frequency compensation.
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